this is a good link, although still high level: http://www.edisontechcenter.org/LED.html http://www.edisontechcenter.org/LED.html and a lab to get a better fee

this is a good link, although still high level: http://www.edisontechcenter.org/LED.html http://www.edisontechcenter.org/LED.html and a lab to get a better feel for how band gaps affect the spectrum: http://electron6.phys.utk.edu/phys250/Laboratories/Light%20emitting%20diodes.htm http://electron6.phys.utk.edu/phys250/Laboratories/Light%20e...